Atsushi Tanno, Hiratsuka-Shi JP

Atsushi Tanno, Hiratsuka-Shi JP

Patent application number

Description

Published

20090159172

PNEUMATIC TIRE MANUFACTURING METHOD AND PNEUMATIC TIRE - Provided is a pneumatic tire manufacturing method capable of improving the productivity of pneumatic tires each having surface fasteners in its tire inner surface, and of avoiding manufacturing a pneumatic tire having a deteriorated uniformity, as well as of preventing engagement elements of each surface fastener from being crushed. Also, provided is a pneumatic tire manufactured by the pneumatic tire manufacturing method. The pneumatic tire manufacturing method according to the present invention includes the steps of, in making a green tire having two-side fasteners in its tire inner surface in its tire circumferential direction, each two-side fastener including an engagement element group on both sides: covering the engagement element groups on first sides of the two-side fasteners with a protective rubber layer made of an uncured rubber; making a cylindrical first formed body on a making drum, with the two-side fasteners covered with the protective rubber layer being intermittently attached to an inner circumferential surface of the first forming body in a circumferential direction thereof with the engagement element groups on second sides of the two-side fasteners being interposed in between; bonding the first formed body to an inner circumference of an annular second formed body by compression through expanding the first formed body into a toroidal shape, and thereby making the green tire; and curing the green tire inside a mold of a curing machine while pressing the green tire from its inside by a bladder.

06-25-2009

20090277549

TIRE NOISE REDUCTION DEVICE - A tire noise reduction device includes at least one noise absorbing member made of a porous material. The noise absorbing member is attached to the inner surface of the tire tread portion. The noise absorbing member includes multiple continuous grooves arranged side by side in a tire circumferential direction in the outer peripheral surface of the noise absorbing member. Each of the continuous grooves has an areal groove bottom and forms see-through regions in the width direction of the noise absorbing member. A groove edge-to-edge distance between each adjacent two of the continuous grooves in the tire circumferential direction is 2 mm to 40 mm. A largest see-through cross-sectional area of each continuous groove is 20 mm

11-12-2009

20090277553

TIRE NOISE REDUCTION DEVICE AND PNEUMATIC TIRE PROVIDED THEREWITH - Provided are a tire noise reduction device allowing rapid and reliable puncture-repair of a pneumatic tire provided with an annular sound absorbing member on the inner surface of a tread portion of the tire, and a pneumatic tire provided with the tire noise reduction device. The tire noise reduction device includes: the annular sound absorbing member made of a porous material; and a repair liquid permeable layer stacked on an outer peripheral surface of the sound absorbing member. The repair liquid permeable layer has many continuous pores and has a flow resistance lower than that of the porous material. The tire noise reduction device is mounted on the inner peripheral surface of a tread portion of the pneumatic tire.

TIRE NOISE REDUCTION DEVICE - Provided is a tire noise reduction device including an annular noise absorbing member which is made of a porous material, and which is arranged on the inner circumferential surface of a tire. A protective layer made of a thermoplastic elastomer composition obtained by dispersing an elastomer in a thermoplastic resin is arranged on the outer circumferential surface of the annular noise absorbing member.

12-24-2009

20100012243

TIRE NOISE REDUCTION DEVICE AND PNEUMATIC TIRE - There is provided a tire noise reduction device and a pneumatic tire, in which weight can be reduced while sound absorbing characteristics are maintained and durability is improved.

PNEUMATIC TIRE - There is provided a method of producing a pneumatic tire having a hoop-and-loop fastener on the inner surface of the tire in which productivity can be improved and deterioration of uniformity can be avoided.

02-25-2010

20100294406

PNEUMATIC TIRE - A pneumatic tire including: a tread portion and a belt layer on an outer periphery of a carcass layer that extends between left and right bead portions and a plurality of circumferential main grooves extending in a tire circumferential direction provided on an outer surface of the tread portion, wherein on a tire cavity side surface of the tread portion, a ridge (Ra) protruding into the tire cavity side in a direction opposite to a tire radial direction is formed that extends in the tire circumferential direction in a position offset from a tire center towards a well side of a mounting rim so as to encompass an entire width of a well and an entire width of a circumferential main groove positioned farthest to a shoulder side.

11-25-2010

20100307655

PNEUMATIC TIRE - A pneumatic tire including a sealant layer formed from a sealant fluid having adhesive properties that is provided on a tire inner circumferential surface corresponding with a tread portion; and a sound absorbing layer formed from a porous material that is provided via a barrier layer impermeable to the sealant fluid on an inner circumferential surface of the sealant layer; wherein a width W

12-09-2010

20110061781

TIRE NOISE REDUCTION DEVICE AND PNEUMATIC TIRE PROVIDED WITH THE SAME - A tire noise reduction device including a noise absorbing member made from a porous material that is formed into a band, the band being disposed along a tire circumferential direction on an inner surface of a tread portion of a pneumatic tire, wherein the noise absorbing member is wound so as to be laminated with two layers or more on at least a part of the tire circumferential direction to form a circular body, a crossing section where an inside layer and an outside layer of the noise absorbing member interchange is provided in at least one location on a periphery of the circular body, and the ends of the longitudinal direction of the noise absorbing member are disposed inward of the outermost layer of the noise absorbing member.

03-17-2011

20110262573

METHOD FOR MANUFACTURING BLADDER FOR USE IN MANUFACTURING TIRES - A method for manufacturing a bladder for use in manufacturing tires having a surface-modified rubber layer on an outer surface side of a base rubber layer, including the steps of: forming an uncross-linked body of the surface-modified rubber layer by molding a rubber composition including a modified butyl rubber composition and an organic peroxide and applying a siloxane compound having a (meth)acryloyl group to a surface of this rubber molded body; forming the base rubber layer from an unvulcanized body or vulcanized body formed from a rubber composition different than the modified butyl rubber composition; laminating the uncross-linked body of the surface-modified rubber layer on the outer surface side of the base rubber layer; and heat treating.

10-27-2011

20120000588

PNEUMATIC TIRE - Provided is a pneumatic tire including a hook-and-loop fastener which has a plurality of engaging elements provided at one surface of a base, in which the base of the hook-and-loop fastener is adhered to an inner surface of the tire so that the engaging elements are located near an inner cavity of the tire, and in which a protrusion is provided at one surface of the base of the hook-and-loop fastener to prevent the engaging elements from being crushed.

01-05-2012

20120024439

PNEUMATIC TIRE - A pneumatic tire including a separatable pair of mechanical fasteners wherein a first fastener of the pair of mechanical fasteners is provided on a tire inner surface. In this pneumatic tire, the obtained engagement force of the pair of mechanical fasteners is great and is essentially free of variations (positional variation within the tire and variation from tire to tire); the engagement force deteriorates/declines minimally over time due to extreme usage conditions including repetitive deformation and compaction over an extended period of time caused by tire rotation at high speeds in a state of relatively elevated temperatures; and the desired engagement force can be maintained over an extended period of time.

02-02-2012

20120160387

PNEUMATIC TIRE AND METHOD OF MANUFACTURING PNEUMATIC TIRE - A pneumatic tire including a cylindrical annular structure, a rubber layer that will become a tread portion provided along a circumferential direction of the annular structure, on an outer side of the annular structure, and a carcass portion including fibers covered by rubber, provided on both sides in a direction parallel to a center axis (Y-axis) of a cylindrical structure including the annular structure and the rubber layer. In a meridian cross-sectional view of the structure, an outer side of the rubber layer and the outer side of the annular structure have the same form.

06-28-2012

20120160389

PNEUMATIC TIRE AND METHOD OF MANUFACTURING PNEUMATIC TIRE - A pneumatic tire including a cylindrical annular structure, a rubber layer that will become a tread portion provided along a circumferential direction of the annular structure, on an outer side of the annular structure, and a carcass portion including fibers covered by rubber, provided on both sides in a direction parallel to a center axis (Y-axis) of a cylindrical structure including the annular structure and the rubber layer.

06-28-2012

20120291933

PNEUMATIC TIRE AND METHOD OF MANUFACTURING THE SAME - A pneumatic tire including a resin layer on at least a portion of the tire inside surface, the resin layer being formed from a thermoplastic resin or a thermoplastic elastomer composition in which an elastomer is dispersed in a thermoplastic resin. The pneumatic tire is provided with a fastener including a base material formed from a thermoplastic resin and engaging elements formed on the base material. Additionally, the base material of the fastener is fixed to the resin layer via fusion bonding.

11-22-2012

20120298272

PNEUMATIC TIRE - A pneumatic tire that is provided with a first fastener of a separatable pair of mechanical fasteners on a tire inner surface, wherein, even in cases where a desired object is engaged/fixed using only one fastener, the object does not rotate having the fastener as a central axis when the tire is in use. A first fastener of the pair of mechanical fasteners is provided on a tire inner surface, and the mechanical fasteners are provided with a rotation preventing mechanism for preventing the fasteners from mutually rotating when the pair of mechanical fasteners are engaged.

11-29-2012

20120298279

PNEUMATIC TIRE - A pneumatic tire including: a cylindrical annular structure; a rubber layer, which will become a tread portion, provided along a circumferential direction of the annular structure on an outer side of the annular structure; a carcass portion provided on at least both sides in a width direction of the cylindrical structure including the annular structure and the rubber layer; and an extending portion that extends from both sides in the width direction of the annular structure farther outward in the width direction than a ground contact edge on the outer side in the width direction of the tread portion, and that is provided in plurality on both sides in the width direction along the circumferential direction of the annular structure.

11-29-2012

20120299217

METHOD FOR MANUFACTURING PNEUMATIC TIRE - A green tire of a pneumatic tire, including a cylindrical annular structure, an unvulcanized rubber layer, which will become a tread portion, provided along a circumferential direction of the annular structure on an outer side of the annular structure, and a carcass portion including fibers covered with rubber, provided on at least both sides in the width direction of a cylindrical structure including the annular structure and the unvulcanized rubber layer, is disposed in a vulcanization mold. The vulcanization mold is split into the side plates and the sector at a position on the inner side in the width direction of the annular structure. Next, the bladder inside the green tire is pressurized after closing the side plates and prior to closing the sector. Then the sector is closed and vulcanization is started.

11-29-2012

20130008588

METHOD OF PRODUCING PNEUMATIC TIRE - A method of producing a pneumatic tire T having at least one hoop-and-loop fastener provided along the circumferential direction of the tire on the inner surface of the tire is disclosed. The method includes, forming on a building drum, a cylindrical first formed body with the at least one hoop-and-loop fastener intermittently attached to the radially inner surface thereof along the circumferential direction of the drum, forming a green tire by expanding the first formed body into a toroidal shape to press the first formed body against the inner peripheral side of an annular second formed body, and vulcanizing the green tire.

01-10-2013

20130248070

NOISE REDUCING DEVICE, MANUFACTURING METHOD FOR THE NOISE REDUCING DEVICE, AND PNEUMATIC TIRE HAVING THE NOISE REDUCING DEVICE - Provided are: a noise reduction device with an improved adhesion of objects formed of a porous material and with a reduced processing time; a method of manufacturing the noise reduction device; and a pneumatic tire including the noise reduction device. The noise reduction device of the present invention includes: objects formed of a porous material; a band member for attaching the objects to the inner surface of a tire at two positions spaced at substantially equal intervals in the tire circumferential direction; and locking members formed of a thermoplastic resin. The band member is formed of a thermoplastic resin. Each object is disposed at a predetermined position in the tire circumferential direction, between the band member and the corresponding locking members. The locking members are bonded to the band member through the objects by thermal fusion.

09-26-2013

20130248071

PNEUMATIC TIRE MANUFACTURING METHOD AND PNEUMATIC TIRE - A pneumatic tire manufactured by a method comprising: covering the engagement element groups on first sides of a two-side fasteners with a protective rubber layer made of an uncured rubber; making a cylindrical first formed body on a making drum, with the two-side fasteners covered with the protective rubber layer being intermittently attached to an inner circumferential surface of the first forming body in a circumferential direction thereof with the engagement element groups on second sides of the two-side fasteners being interposed in between; bonding the first formed body to an inner circumference of an annular second formed body by compression through expanding the first formed body into a toroidal shape, and thereby making the green tire; and curing the green tire inside a mold of a curing machine while pressing the green tire from its inside by a bladder.

09-26-2013

20130248080

NOISE REDUCING DEVICE, MANUFACTURING METHOD FOR THE NOISE REDUCING DEVICE, AND PNEUMATIC TIRE HAVING THE NOISE REDUCING DEVICE - Provided are: a noise reduction device with an improved adhesion of objects formed of a porous material and with a reduced processing time; a method of manufacturing the noise reduction device; and a pneumatic tire including the noise reduction device. The noise reduction device of the present invention includes: objects formed of a porous material; a band member for attaching the objects to the inner surface of a tire at two positions spaced at substantially equal intervals in the tire circumferential direction; and locking members formed of a thermoplastic resin. The band member is formed of a thermoplastic resin. Each object is disposed at a predetermined position in the tire circumferential direction, between the band member and the corresponding locking members. The locking members are bonded to the band member through the objects by thermal fusion.

09-26-2013

20130342001

Tire/Wheel Assembly - A tire/wheel assembly includes a cylindrical annular structure, a rubber material layer provided on a periphery of the annular structure and that faces a circumferential direction of the annular structure, and a plurality of curved metal spring members provided between the annular structure and an electric motor disposed on the inner side of the annular structure that transfers rotation of a rotor of the electric motor to the annular structure.

12-26-2013

20140012466

Traveling Device - A traveling device includes a pneumatic tire mounted on a vehicle, an air pressure adjusting device that adjusts air pressure of the pneumatic tire, and an air pressure control device that increases the air pressure to be higher than a recommended inflation pressure when travel speed of the vehicle is not more than a designated speed.

01-09-2014

20140020801

LOW NOISE PNEUMATIC TIRE - Provided is a low noise pneumatic tire in which the noise absorbing member on the inner peripheral surface of the tire is made less likely to be damaged when the pneumatic tire is removed from the rim. The pneumatic tire includes a noise absorbing member of a porous material which is attached to an inner peripheral surface of the tire. In the pneumatic tire, a lubricant is applied to the inner peripheral surface of the noise absorbing member. Alternatively, both end portions, in a tire width direction, of the inner peripheral surface of the noise absorbing member are covered with protective layers harder than the noise absorbing member.

01-23-2014

20140110034

Pneumatic Tire and Method of Manufacturing Pneumatic Tire - A pneumatic tire includes: an annular structure that is cylindrical and metal where at least an outer side surface in the radial direction is a rough surface; a tread rubber layer that will become a tread portion provided along a circumferential direction of the annular structure on an outer side of the annular structure; and a carcass portion including fibers covered with rubber, provided on at least both sides in a direction parallel to a center axis of the cylindrical structure including the annular structure and the tread rubber layer.

04-24-2014

20150013866

Vehicle Hub Unit and Air Pressure Adjusting Device - A vehicle hub unit that supports a wheel that attaches to a pneumatic tire and is attached to a joint and an air pressure adjusting device that has this vehicle hub unit, provided with a first air passage that is formed with a first opening in at least one location on a surface that attaches to the wheel, is attached to pneumatic piping of the joint that supplies air, and supplies air from the first opening to the wheel; and a second air passage that is formed with a second opening in at least one location on a surface that attaches to the wheel, is attached to pneumatic piping of the joint that exhausts air of the joint, and collects air of the wheel from the second opening.

01-15-2015

20150041038

Pneumatic Tire and Method of Manufacturing Pneumatic Tire - A pneumatic tire is provided with a carcass layer and a sidewall rubber disposed on an outer side in a tire width direction of the carcass layer. Additionally, the pneumatic tire is provided with a resin coating applied on a predetermined region of a sidewall portion. Additionally, a minimum value of a wall thickness t of a rubber of the sidewall portion in the region applied with the resin coating is in a range of 0.05 mm≦t≦4.0 mm. Additionally, a thickness of the resin coating is in a range of 20 μm or more and 300 μm or less.